[Latest] How old is 5.45×39mm now?

Living Person

5.45×39mm
is

As of April 18, 2026

52 years old
approximately!

Date of Birth

(1974 ) is

Tiger
Year

* Calculated from Wikipedia data.
Accuracy is not guaranteed.

approx.Cosmic Age Calculator

Moon

approx. 700.3 years old

Mercury

approx. 217.5 years old

Venus

approx. 85.1 years old

Mars

approx. 27.8 years old

Jupiter

approx. 4.4 years old

Saturn

approx. 1.8 years old

* Calculated based on each planet's orbital period.

5.45×39 mm

5.45×39 mm cartridge

Type

Rifle

Place of origin

Soviet Union

Service history

In service

1974–present

Used by

Soviet Union/Russian Federation, former Soviet republics, former Warsaw Pact

Wars

Afghan War, Georgian Civil War, First Chechen War, Second Chechen War, Yugoslav Wars, War in Afghanistan (2001–2021), Syrian Civil War, 2020 Nagorno-Karabakh conflict, Russian invasion of Ukraine

Production history

Designed

early 1970s

Variants

5.45×39mm PSP

Specifications

Case type

Rimless, bottleneck

Bullet diameter

5.60 mm (0.220 in)

Land diameter

5.40 mm (0.213 in)

Neck diameter

6.29 mm (0.248 in)

Shoulder diameter

9.25 mm (0.364 in)

Base diameter

10.00 mm (0.394 in)

Rim diameter

10.00 mm (0.394 in)

Rim thickness

1.50 mm (0.059 in)

Case length

39.82 mm (1.568 in)

Overall length

57.00 mm (2.244 in)

Case capacity

1.75 cm (27.0 gr H₂O)

Rifling twist

255 mm (1 in 10 inch) or
200 mm (1 in 7.87 inch)

Primer type

Berdan or Small rifle

Maximum pressure

355.00 MPa (51,488 psi)

Ballistic performance

Bullet mass/type	Velocity	Energy
3.43 g (53 gr) 7N6 FMJ mild steel core	880 m/s (2,900 ft/s)	1,328 J (979 ft⋅lbf)
3.43 g (53 gr) 7N6M FMJ hardened steel core	880 m/s (2,900 ft/s)	1,328 J (979 ft⋅lbf)
3.62 g (56 gr) 7N10 FMJ enhanced penetration	880 m/s (2,900 ft/s)	1,402 J (1,034 ft⋅lbf)
3.69 g (57 gr) 7N22 AP hardened steel core	890 m/s (2,900 ft/s)	1,461 J (1,078 ft⋅lbf)
5.2 g (80 gr) 7U1 subsonic for silenced AKS-74UB	303 m/s (990 ft/s)	239 J (176 ft⋅lbf)

Test barrel length: 415 mm (16.3 in) and 200 mm (7.9 in) for 7U1
Source:

Wikipedia Categories

Soviet inventions

5.45×39mm firearms

Military cartridges

Pistol and rifle cartridges

Military equipment introduced in the 1970s

Look up "5.45×39mm" on Wikipedia